Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
Breaking News
Maptitude 2019 Adds Enhanced MapPoint and Streets & Trips Features
NEWTON, MASSACHUSETTS (USA) - Maptitude 2019 dominates the space...
Topcon introduces real-time reality capture solution
LIVERMORE, Calif. – Topcon Positioning Group announces its new real-time reality...
CyberTech launches second Esri technologies Support Center in Pune, India
OAK BROOK, Ill.- CyberTech Systems and Software Ltd., the next-generation...
Orbit GT launches 3D Mapping portfolio v19.5 and QGIS plugin update
Lokeren, Belgium – Orbit GT has launched version 19.5 for...
Weather Stations Deployed by Luau Data and ACAMP in Reno, Nevada to Support NASA and NIAS Testing of Urban Drone Traffic Management System
EDMONTON, Alberta - ACAMP partnered with Alberta-based Luau Data Corporation...

This first ever map of global neutrino emissions highlights concentrations of natural radioactive elements and manmade nuclear fission. (Credit: MATLAB)

This first ever map of global neutrino emissions highlights concentrations of natural radioactive elements and manmade nuclear fission. (Credit: MATLAB)

A map published in Nature Scientific Reports shows what the world would look like if we could see the trillions of neutrinos that emanate from the surface of the planet each second. Dark spots on the map indicate nuclear reactors and parts of Earth’s crust rich with radioactive uranium and thorium, which emit neutrinos when they decay.

According to William McDonough, a geophysicist at the University of Maryland, the map was created using neutrino signals captured in two detectors, one in Italy and one in Japan. The rest of the map was constructed using data about the composition and density of Earth’s crust and the location of the world’s reactors.

Dark patches appear around mountain ranges, where there’s a lot of naturally occurring radioactive decay. Some of the dark spots are from reactors, but these are actually antineutrinos—the antimatter counterpart to neutrinos.

The detectors employ building-sized tanks of mineral oil, through which trillions of neutrinos pass unobstructed each second. But occasionally a neutrino hits the nucleus of a hydrogen atom, annihilating a proton and leaving behind a positron and a neutron—which will register a signal.

An enormous neutrino detector may prove useful for global monitoring, says Lindley Winslow, a neutrino physicist at MIT. A mega-detector called Juno is planned to start up in China in 2020, although that’s primarily aimed at answering fundamental questions about the nature of the universe. The difference between neutrinos and antineutrinos may hold the answer to why the universe produced more matter than antimatter, allowing the world to exist.

Comments are closed.